package com.xuecheng.config;

import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

@Configuration
public class LocalDateTimeConfig {
	/*
	 * 序列化内容
	 * LocalDateTime -> String
	 * 服务端返回给客户端内容
	 * */
	@Bean
	public LocalDateTimeSerializer localDateTimeSerializer() {
		return new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
	}
	
	/*
	 * 反序列化内容
	 * String -> LocalDateTime
	 * 客户端传入服务端数据
	 * */
	@Bean
	public LocalDateTimeDeserializer localDateTimeDeserializer() {
		return new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
	}
	
	// 配置
	@Bean
	public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
		return builder -> {
			builder.serializerByType(LocalDateTime.class, localDateTimeSerializer());
			builder.deserializerByType(LocalDateTime.class, localDateTimeDeserializer());
		};
	}
}
